PROFESSIONAL MANUFACTURER
OF SILICON DIOXIDE
NEWS&EVENT
Quality is our core our concept
A magical material-aerogel
Release time:
2021-09-16 14:48
Source:
At the New Materials Science and Technology City Industry-University-Research Summit, professors from Central South University showed the participants a magical material-aerogel. This material is light enough to be put on a flower, but at the same time it can bear 4000 times the weight of itself. It can be burned on the flame or sprayed with liquid nitrogen, as if it has an indestructible body.
Aerogel was made in 1931 by a bet between two American researchers. It is a nanomaterial, the composition is mainly silica, the melting point is above 1300 ℃, in the long-term use of the environment, the melting point can also reach above 600 ℃, with fire prevention characteristics. Because the aerogel generally contains 80% air, it has a very good heat insulation effect. An inch thick aerogel is equivalent to the heat insulation function of 20 to 30 pieces of ordinary glass. In addition, it can also reduce noise and absorb energy. Based on these characteristics, aerogels have 13 world records in the new materials industry.
At first, aerogels were mainly used in high-end fields such as aerospace, national defense, military industry and nuclear industry. After entering the 21st century, due to the reduction of production costs, aerogels began to be applied to civilian fields. "Aerogel has a wide range of applications. It can be used for lightweight high-speed rail, environmental management, drug carriers, etc. If it is used in the field of clothing, then we only need to wear a 3mm thick aerogel cloth in winter. That's it."
The professor of Central South University focused on the application of aerogels in the field of construction. He said that with two pieces of glass holding a piece of aerogel, this "sandwich structure" of aerogel glass can improve building performance without weight gain and thickening. "Aerogel glass has fire prevention and energy absorption characteristics, which can improve the current glass fire explosion, wind pressure difference and other problems, and improve the safety level of the building; the heat insulation function of aerogel glass can make the building 'warm in winter and cool', Improve indoor comfort. In addition, by combining with other technologies, aerogel glass can also change color, photovoltaic power generation, and realize the personalized construction of buildings.
Aerogels, aerogel applications, aerogel applications, aerogel insulation
Previous
